X0306 4 2017-01-30 0000936468 LOCKHEED MARTIN CORP LMT 0001022723 ARCHIBALD NOLAN D 6801 ROCKLEDGE DRIVE BETHESDA MD 20817 1 Phantom Stock Units 2017-01-30 4 A 0 573.5079 A Common Stock 573.5079 23661.3926 I Lockheed Martin Directors Equity Plan The stock units convert on a 1-for-1 basis. Annual award of stock units under the Lockheed Martin Corporation 2009 Directors' Equity Plan, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $252.83 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the reporting person's retirement or termination of service. End of period holdings include additional acquisitions through dividend reinvestment. Nolan D. Archibald, by Marian S. Block, Attorney-in-fact 2017-02-01